tls: rename MAX_IV_SIZE to TLS_MAX_IV_SIZE

It's defined in include/net/tls.h, avoid using an overly generic name.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/tls.h

@@ -61,7 +61,7 @@ struct tls_rec;
 
 #define TLS_AAD_SPACE_SIZE		13
 
-#define MAX_IV_SIZE			16
+#define TLS_MAX_IV_SIZE			16
 #define TLS_TAG_SIZE			16
 #define TLS_MAX_REC_SEQ_SIZE		8
 #define TLS_MAX_AAD_SIZE		TLS_AAD_SPACE_SIZE

net/tls/tls.h

@@ -127,7 +127,7 @@ struct tls_rec {
 	struct sock *sk;
 
 	char aad_space[TLS_AAD_SPACE_SIZE];
-	u8 iv_data[MAX_IV_SIZE];
+	u8 iv_data[TLS_MAX_IV_SIZE];
 	struct aead_request aead_req;
 	u8 aead_req_ctx[];
 };

net/tls/tls_device_fallback.c

@@ -54,7 +54,7 @@ static int tls_enc_record(struct aead_request *aead_req,
 			  struct scatter_walk *out, int *in_len,
 			  struct tls_prot_info *prot)
 {
-	unsigned char buf[TLS_HEADER_SIZE + MAX_IV_SIZE];
+	unsigned char buf[TLS_HEADER_SIZE + TLS_MAX_IV_SIZE];
 	const struct tls_cipher_desc *cipher_desc;
 	struct scatterlist sg_in[3];
 	struct scatterlist sg_out[3];

net/tls/tls_main.c

@@ -59,7 +59,7 @@ enum {
 };
 
 #define CHECK_CIPHER_DESC(cipher,ci)				\
-	static_assert(cipher ## _IV_SIZE <= MAX_IV_SIZE);		\
+	static_assert(cipher ## _IV_SIZE <= TLS_MAX_IV_SIZE);		\
 	static_assert(cipher ## _REC_SEQ_SIZE <= TLS_MAX_REC_SEQ_SIZE);	\
 	static_assert(cipher ## _TAG_SIZE == TLS_TAG_SIZE);		\
 	static_assert(sizeof_field(struct ci, iv) == cipher ## _IV_SIZE);	\

net/tls/tls_sw.c

@@ -60,7 +60,7 @@ struct tls_decrypt_arg {
 
 struct tls_decrypt_ctx {
 	struct sock *sk;
-	u8 iv[MAX_IV_SIZE];
+	u8 iv[TLS_MAX_IV_SIZE];
 	u8 aad[TLS_MAX_AAD_SIZE];
 	u8 tail;
 	struct scatterlist sg[];
@@ -2319,7 +2319,7 @@ int tls_rx_msg_size(struct tls_strparser *strp, struct sk_buff *skb)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(strp->sk);
 	struct tls_prot_info *prot = &tls_ctx->prot_info;
-	char header[TLS_HEADER_SIZE + MAX_IV_SIZE];
+	char header[TLS_HEADER_SIZE + TLS_MAX_IV_SIZE];
 	size_t cipher_overhead;
 	size_t data_len = 0;
 	int ret;
@@ -2669,7 +2669,7 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
 	}
 
 	/* Sanity-check the sizes for stack allocations. */
-	if (nonce_size > MAX_IV_SIZE || prot->aad_size > TLS_MAX_AAD_SIZE) {
+	if (nonce_size > TLS_MAX_IV_SIZE || prot->aad_size > TLS_MAX_AAD_SIZE) {
 		rc = -EINVAL;
 		goto free_priv;
 	}